Hoʻolālāʻia me vs. Unbiased, Reyes, a me GPU-Holo
Inā hoʻohanaʻoe i kekahi manawa e nānā i nā lako likeʻole ma ka makeke, a heluhelu paha e pili ana i nā hoʻololi kū kaʻawale , hiki i nā mea i loaʻa i nā hua'ōlelo e like me nā mea hōʻeuʻeu a me keʻanoʻole, GPU-acceleration, Reyes, a me Monte-Carlo.
ʻO ka hawewe hou loa o nā mea unuhi hou aku i hana i ka hana he nui loa o ka hype, akā hiki i kekahi manawa ke paʻakikī e haʻi i kaʻokoʻa ma waena o ka buzzword marketing a me ka pono pono-a-akua.
E nānā i kekahi o nā hua'ōlelo e hiki ai iāʻoe ke hoʻokokoke i nā mea ma kahiʻike māmā:
He aha ka mea likeʻole ma waena o ka makana maikaʻi a me ka hāʻawiʻoleʻia?
ʻO ka kūkākūkāʻana i nā mea i hanaʻoleʻia i ka hoʻokaeʻoleʻiaʻana o ka hua'ōlelo e hiki ke loaʻa wikiwiki i ka loiloi. E makemake mākou e hōʻalo i kēlā, no laila, e ho'āʻo wau e mālama iā ia ma keʻano he hiki.
- Unbiased -ʻO nā mea hōʻailonaʻole iʻikeʻoleʻia e like me Maxwell, Indigo, a me ka Luxrender nā mea i kapaʻia he "mau kiko". ʻOiai he "kūpono kūpono" kekahi meaʻanoʻole (ʻaʻohe mea i CG me ke kūpono maoli),ʻo ka hua'ōlelo e hōʻikeʻia e hoʻololiʻia ka ala o ka mālamalama e like me ka mea iʻikeʻia i kaʻikepili i loko o ka hopena o nāʻano algorithms .
I nā hua'ōlelo'ē aʻe,ʻaʻole i hoʻokomo ponoʻia kekahi hapaʻoihana a "ʻole". Hiki ke hoʻohālikelikeʻia kekahi kū'ē, akā hāʻawiʻia i ka manawa kūpono e hoʻololiʻia kekahi huakaʻi maʻamau i ka hua'ōlelo "make". - Nānā -ʻO nā mea hōʻailona waiwai, ma kekahiʻaoʻao'ē aʻe, e hōʻoiaʻiʻo i nā manaʻo no ka pono o ka pono. Ma mua o ka holoʻana a hiki i ka loaʻaʻana o kahi hopena maikaʻi, laweʻia nā mea hōʻailona hōʻailona i ka lālā pōkole, a hoʻohana i ka pilina iʻole e hoʻopiʻi e hoʻoemi i ka manawa. Hiki i nā mea hōʻailona waiwai ke hana maikaʻiʻia ma mua o kā lākou mau mea ponoʻole, a ma nā lima'ākau, hiki i ka mea huakaʻi huakaʻi ke hana i ka hopena pololei loa me ka emi loa o ka manawa CPU.
No laila, ma waena o kekahi pūnaewele ponoʻole, ka mea i makemake ai i ka manawa o ka CPU a iʻole he mau kau akamai-manawa e hana ai, aiʻole he mea hana huakaʻi i hāʻawi i ka mea pena iʻoi aku ka mana o ka mea akamai akā e koi ana i ka manawaʻoi aku e hoʻomoʻokoʻa i ka mea hanahana.
ʻOiai he mau kuhihewa wale nō i ka rula, he hana maikaʻi nā kiʻi huakaʻiʻole no nā kiʻi mau, akā ma ka hoʻolālāʻana i nā hiʻohiʻona, akā, i ka neʻeʻana i nā kiʻi, kiʻiʻoniʻoni, a me ka animation i manaʻoʻia ka maikaʻi o ka mea huakaʻi huakaʻi.
Pehea ke ala e piʻi ai ka GPU i loko?
ʻO ka piʻiʻana o ka GPU he ulu hou i ka hanaʻenehana. Ua hoʻolālāʻia nā pūʻali-ma nā pūnaewele GPU no nā makahiki a me nā makahiki, akā naʻe,ʻaʻole i liuliu wale nō iʻimiʻia ka huiʻana o GPU no ka hoʻohanaʻana i nā noi hoʻokomo manawaʻole i kahi o ka CPU i lilo ai i mō'ī.
Eia naʻe, me ka hoʻolaha nuiʻiaʻana o ka pae CUDA o NVIDIA, ua hiki ke hoʻohana i ka GPU i ka manawa like me ka CPU i nā hana hana kūlohelohe, me ka hoʻouluʻana i kahi nalu hou o nā noi unuhi.
Hikiʻole keʻikeʻoleʻia nā kikowaena kiʻi GPU-like,ʻo Indigo a me'Oteaneane, a iʻole likeʻole e like me Redshift.
ʻAuheaʻo Renderman (Reyes) ke komo i loko o ke kiʻi?
Ma kekahi papahana, kū kahi haʻahaʻaʻo Renderman mai kahi kūkākūkā o kēia manawa. He hana pilikino i hanaʻia ka pilina e pili ana i ka Reyes algorithm, i hoʻonuiʻia ma mua o 20 makahiki i hala ma Pixar Animation Studios.
Hoʻokumu nuiʻiaʻo Renderman i loko o nā'ōnaehana kiʻi wikiō, a ma muli o ka hoʻokumuʻana i ka hoʻokūkū mai Solid Angle's Arnold, e lilo ana ia i hoʻokahi o nā hopena hōʻike nui ma nā hoʻolālā a me nā hoʻolālā hoʻolālā i nā makahiki he nui.
No laila, inā mahalo nuiʻo Renderman, no ke aha (ma kahi'ē aʻe ma nā wahi likeʻole e like me CGTalk),ʻaʻole aneiʻoe e lohe pinepine i kēia?
No ka mea,ʻaʻole ia i hanaʻia no ka mea hoʻohana hope loa. E nānā ma kahi o ka pūnaewele CG i ka pūnaewele aʻikeʻoe i nā kiʻi he mau tausani mai nā mea e like me Vray a me Mental Ray, aiʻole nā hōʻailona likeʻole e like me Maxwell a me Indigo, akā he mea paʻakikī ke hele ma nā mea i kūkuluʻia ma Renderman.
ʻO ka mea wale nō ia e iho mai ai i kaʻoiaʻiʻoʻaʻole i hoʻohanaʻia e Renderman (e like me Arnold) nā meaʻenehana kūʻokoʻa. ʻOiaiʻo Vray a Maxwell paha e hoʻohana pono loaʻia e kahi mea pena kiʻi kūʻokoʻa, pono i kahi hui e hoʻohana i ka Renderman i ka mea i manaʻoʻia. Ua hoʻolālāʻiaʻo Renderman no nā pipeline production nui, aʻo ia kahi kahi e ulu ai.
He aha keʻano o ia mea no ka mea hoʻohana hope?
ʻO ka mea mua,ʻo ia hoʻi he mau koho'ē aʻe ma mua o ka wā. ʻAʻoleʻo ia i ka wā ma mua,ʻo ka hōʻanoʻana he wahi kilokilo ma ka honua CG, aʻo nā mea hana akamai wale nō i paʻa i nā kī. Ma ka hala o nā makahiki he hala i hala iho nei, ua hoʻonui nuiʻia ke kahua pāʻani a me ka kiʻi-ua hiki ke kūpono loa kaʻikeʻana no ka hui hoʻokahi (ma ke kiʻi mau, ma keʻano).
E nānā i kā mākou papa inoa i hoʻopuka houʻia o nā engines hoʻokele eʻike i ka nui o nā hanana hou i puka mai. Ua hoʻokuʻiʻia kaʻenehana hana hou ma waho o ka pahu, aʻo nāʻano hou e like me Octane a iʻole Redshift, heʻano likeʻole ia me nā mea kahiko e like me Renderman e aneane hikiʻole ke hoʻohālikelike.